Base | Representation |
---|---|
bin | 11000001100011010… |
… | …11111010010010000 |
3 | 1020112020021201010020 |
4 | 30012031133102100 |
5 | 203100202214300 |
6 | 5544521303440 |
7 | 636611352465 |
oct | 140615372220 |
9 | 36466251106 |
10 | 12989101200 |
11 | 5566010a89 |
12 | 2626034b80 |
13 | 12c0056cca |
14 | 8b312d66c |
15 | 5104ec8a0 |
hex | 30635f490 |
12989101200 has 60 divisors (see below), whose sum is σ = 41608424688. Its totient is φ = 3463760000.
The previous prime is 12989101187. The next prime is 12989101201. The reversal of 12989101200 is 210198921.
It is a tau number, because it is divible by the number of its divisors (60).
It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (12989101201) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5410926 + ... + 5413325.
Almost surely, 212989101200 is an apocalyptic number.
12989101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12989101200 is an abundant number, since it is smaller than the sum of its proper divisors (28619323488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12989101200 is a wasteful number, since it uses less digits than its factorization.
12989101200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10824272 (or 10824261 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 33.
The spelling of 12989101200 in words is "twelve billion, nine hundred eighty-nine million, one hundred one thousand, two hundred".
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